<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'">
    <title>你好!</title>
    <link rel="stylesheet" href="./renderer/app.css">
</head>
<body>
<h1>你好!</h1>
<button id="btn">点击1</button>

<script src="./renderer/app.js"></script>
</body>
</html>
